4-Isopropylthioxanthone, Isopropyl thioxanthone, 4-Isopropyl-9H-thioxanthen-9-one, Isopropyl-9H-thioxanthen-9-one,mixture of 2-and 4-isomers, 4-Isopropyl-9-thioxanthone, 4-Isopropyl-thioxanthene-9-one, EINECS 281-065-4, Isopropylthioxanthone, 4-Isopropyl thioxanthone